tcpsvd -vE 0.0.0.0 8021 ftpd -w . # Run on device. -w arg to allow file uploading
printf "put tmp.c\nquit" | ftp -n 192.168.0.12 8021 # Run on computer. -n arg to use anonymous login
NOTE: The ftpd and tftpd programs has been patched to run without chroot. This means that the directory serving is only the starting point and clients may cd out of if the access the whole system!